North America, particularly 1990-2010, fridges with a water dispenser and ice maker built in were/are pretty common. 3 of the 5 houses I lived in as a kid had one.

Filtered, colder-than-tap water, and effectively unlimited ice without having to screw around with ice cube trays. Some also provide heated water that's far cleaner than what comes out of a typical hot water tank, but that feature is rare in my experience.

They have a filter in the water inlet, and should be cleaned inside/out roughly every 6 months (that part is neglected more often than not).

Having an automatic ice maker in the freezer is pretty awesome. then if you have water running to your fridge you may as well have a chilled water dispenser.

I don't really care for fridge water but some people like very cold water and the tap isn't always that cold.

These fridges provide ~4c filtered water and some provide ice. A few even provide two different sizes of ice.